Attaching method of weather strip

Abstract

A method for attaching a weather strip for a motor vehicle, which is capable of securely attaching a base portion of the weather strip to a predetermined position of a flange. The base portion including a bottom wall and an outer side wall and having a generally L-shaped cross-section is curved in a holding section of an attaching device on the side of an end of the flange to enlarge an angle between a bottom wall and an outer side wall of the base portion, and in a pressing section of the attaching device, the bottom wall is pressed against an end of the flange, and a double-sided adhesive tape bonded to the outer side wall is pressed against an exterior face of the flange, whereby the weather strip is attached to the flange.

1 . A method for attaching a weather strip for a motor vehicle, which is capable of providing a seal between a closing member for closing an opening formed in a body of a motor vehicle and an opening portion around the opening, to a flange provided in one of the closing member and the opening portion using an attaching device, wherein the weather strip includes a base portion which is adapted to be attached to the flange, and a seal portion integrally formed with the base portion for contacting the other one of the closing member and the opening portion, and sealing a gap between the closing member and the opening portion, the base portion has a generally L-shaped cross-section, and includes at least an outer side wall and a bottom wall, a double-sided adhesive tape is bonded to an interior face of the outer side wall, and the attaching device has a holding section for holding the weather strip, and a pressing section for pressing the base portion against the flange, the method comprising the steps of curving the base portion on the side of an end of the flange to enlarge an angle between the bottom wall and the outer side wall in the holding section and the pressing section of the attaching device, and moving the attaching device along the flange with the curved base portion set to press the bottom wall against the end of the flange, and press the double-sided adhesive tape bonded to the outer side wall against an exterior face of the flange in the pressing section, whereby the weather strip is attached to the flange.  
   
   
       2 . A method for attaching a weather strip as claimed in  claim 1 , wherein the step of pressing the bottom wall against the end of the flange is performed with a pressing roller which is provided in the pressing section, and the step of pressing the double-sided adhesive tape bonded to the outer side wall against the exterior face of the flange is performed with a pair of pressing rollers which are provided in the pressing section, separately from the pressing roller for pressing the bottom wall against the end of the flange.  
   
   
       3 . A method for attaching a weather strip as claimed in  claim 1 , wherein the step of pressing the double-sided adhesive tape bonded to the outer side wall against the exterior face of the flange is performed by pushing the seal portion which is formed in an exterior face of the outer side wall of the weather strip.  
   
   
       4 . A method for attaching a weather strip as claimed in  claim 1 , wherein the step of pressing the bottom wall against the end of the flange is performed by bringing the end of the flange into contact with a recess which is formed at about a base end of the bottom wall.